Lake depth chart
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22-acre lake in Nipissing District, Ontario. The lake tops out around 58 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 1963, a decades-old survey (a transect sounding survey). The season-by-season read for each species follows, from the map's own numbers.
The outline encloses 22 acres, worked by 1 miles of shoreline. With a 1.5 development index there's bank structure worth casting at, in moderation. 58% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Call it 0.4 mi long by 0.2 mi wide at the broadest reach. It sits in Nipissing District. La Chapelle Lake sits 1 mi southeast — the closest neighbouring chart.
Early season brook trout use the shallows, holding in 2 to 15 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 3 to 20 ft. Put Shoreline break first on the milk run — a drop-off near 3 ft that grades prime for winter. In summer the feeding windows fall in early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Shoreline break (3 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shoreline break (3 ft) | Small jigging spoon, Tungsten jig + plastic |
Start shallow in spring: pumpkinseed sit in 1 to 8 ft that time of year. Summer pushes them deeper, 2 to 10 ft, and winter fish settle into 6 to 18 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for pumpkinseed in spring. Warm-month bites cluster around the evening and early morning. Throw a micro tube or a sponge spider (fly) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (3 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (3 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (3 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Shallow bay flat (3 ft) | Tungsten ice jig + plastic, Tiny spoon |
Count 4 structure marks on this chart. The deepest, Deep basin, sits near 54 ft.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Froggy Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Froggy Lake is about 58 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1963, a decades-old survey (a transect sounding survey).
Anglers target brook trout, pumpkinseed on Froggy Lake.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for pumpkinseed in spring. Scroll up to the map for the complete spot list by species and season.
For brook trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Froggy Lake is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
La Chapelle Lake 1 mi · Sheedy Lake 1 mi · Pine Lake 2 mi · Werwolf Lake 3 mi · Whitethroat Lake 3 mi · Bigfish Lake 3 mi · Talon Lake 3 mi · Tilliard Lake 4 mi · Turtle Lake 4 mi · Green Lake 5 mi · Cahill Lake 6 mi · Teesdale Lake 6 mi
See how Froggy Lake stacks up: best brook trout lakes in Ontario · best pumpkinseed lakes in Ontario
More water nearby: Nipissing District fishing maps (683 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry: published agency survey data. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.